Home / 74,807.28-112,113.94-30,382

Finding the Fourth Proportional to 74,807.28, 112,113.94 and 30,382

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Solution

The fourth proportional to 74,807.28, 112,113.94 and 30,382 is: 45,533.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,807.28 : 112,113.94 = 30,382 : x
  2. Step 2: Convert to fraction form
    74,807.28/112,113.94 = 30,382/x
  3. Step 3: Cross multiply
    74,807.28x = 112,113.94 × 30,382
  4. Step 4: Simplify right side
    74,807.28x = 3,406,245,725.08
  5. Step 5: Solve for x
    x = 3,406,245,725.08/74,807.28
  6. Step 6: Final answer
    x = 45,533.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.